Answers to the questions we expect, and a real email address for the ones we didn't.
Email support@inventowise.com with "Memolens" in the subject. One builder reads every message — responses usually within a couple of days. 中文邮件同样欢迎。
Memolens reads every photo once to build its on-device index — a few minutes for a library of ten-plus thousand photos. It happens exactly once: after that, new photos are picked up incrementally and every search is instant. You can leave the app during indexing; it resumes where it left off.
If iCloud Photos keeps your originals in the cloud ("Optimize iPhone Storage"), iOS has to download a photo before Memolens can read it. That download comes from Apple's iCloud over your network connection — on a slow connection, those photos take longer. Photos stored on the device are always instant.
The app's text comes in English, Simplified Chinese and Traditional Chinese, following your system language. To pin it to English or Simplified Chinese, use the language setting inside the app (gear icon → Language).
Search understands Chinese and English out of the box. On iOS 26 or later, gear icon → Search Languages adds more: iOS downloads each language once, then translation runs on your device, offline.
Memolens is free to download. Search and Wander cover your photos from the last 12 months, and always at least your 500 newest; a one-time purchase, All Years, unlocks every year of your library. No subscription. On a new iPhone or after reinstalling, use gear icon → All Years → Restore Purchases.
Deleting a photo in Memolens moves it to Recently Deleted in the Photos app, after iOS asks you to confirm. You can recover it there for 30 days.
Photo access is managed by iOS: Settings → Privacy & Security → Photos → Memolens. With access to only selected photos, Memolens searches just those; with full access, your whole library.
Deleting the app deletes its index and search history (your photos are untouched). Reinstalling rebuilds the index from scratch on the next launch. To clear only the search history, use gear icon → Search history.
Nowhere. The index lives on your device and nothing is collected — the Memolens privacy policy is short and worth the two minutes.
